英语人>词典>汉英 : 珠孔受精 的英文翻译,例句
珠孔受精 的英文翻译、例句

珠孔受精

基本解释 (translations)
porogamy

更多网络例句与珠孔受精相关的网络例句 [注:此内容来源于网络,仅供参考]

Chalazogamy A method of fertilization in angiosperms in which the pollen tube enters the ovule by the chalaza instead of through the micropyle, penetrating the placenta en route.

合点受精:被子植物的一种受精方式,花粉管是通过合点部分而不是通过珠孔进入胚珠的。

The development of embryo sac is of the Polygonum type.

珠孔受精,受精作用属于有丝分裂前类型。

Toreniafournieri. has a naked embryo sac that protrudes from the micropyle into the cavity between the funiculus and placenta. As embryo sac is mature, the egg cell, the two synergids and about half the central cell are located outside the micropyle.

蓝猪耳在其发育的四核期,胚囊从珠孔端伸出,当胚囊完全成熟时,助细胞、卵细胞和大部分中央细胞均暴露于胚珠组织之外,是研究被子植物受精和胚囊发育的模式植物。

At ld before anthesis, a biggest vacuole located at the micropyle end of the cell and its nucleus was pushed toward the chalazal end of the cell, which made an evident cellular polarity.

受精后合子中的钙颗粒又明显增多,在核质中分布一些较大的钙颗粒,在珠孔端大液泡中聚集了较多的絮状钙。

Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle.

珠孔受精:被子植物通常的受精方式。花粉管通过珠孔进入胚珠。

It takes about 0.5 h for a pollen tube from germination to arrive at the micropyle. About 0.5 h after pollination, the pollen tube releases two sperms into one synergid. At 0.5-2.5 h after pollination, the egg cell fuses with one sperm to form a zygote. About 10.0 h after pollination, the division of the zygote begins. The duration of the zygote lasts about 2.5-10.0 h. However, one sperm nucleus fuses with two polar nuclei at 1.0-3.0 h after pollination, and 5.0 h after pollination the primary endosperm nucleus begins to divide.

水稻受精过程经历的时间表如下:授粉后,花粉在柱头萌发;花粉萌发至花粉管进入珠孔大约需要0.5小时;授粉后0.5小时左右,花粉管进入一个助细胞,释放精子;授粉后0.5-2.5小时,精卵融合形成合子;授粉后约10.0小时,合子第1次分裂,合子期为授粉后2.5-10.0小时;授粉后1.0-3.0小时,精核与两极核融合;授粉后约5.0小时,初生胚乳核分裂。

更多网络解释与珠孔受精相关的网络解释 [注:此内容来源于网络,仅供参考]

allogamy, cross-fertilization:异花受精

自花受精 autogamy, self-fertilization | 异花受精 allogamy, cross-fertilization | 珠孔受精 porogamy

egg apparatus:卵器

近珠孔端的三个核,一个分化成卵细胞(egg cell)、两个分化为两个助细胞(synergid),它们常合称为卵器(egg apparatus). 卵器中的这两类细胞在形态、极性和细胞壁的分化上有许多相似之处,彼此间有胞间连丝,协同完成卵的受精过程.

entomophily:虫媒

虫媒花:昆虫为媒介进行传粉方式的称虫媒(entomophily),借助这类方式传粉的花,称虫媒花 虫媒花 珠孔: 珠孔:种子植物的胚珠顶端由于珠被不愈合而形成的一个小开孔或小缝隙.珠孔受精的植物,其珠 孔为花粉管进入胚珠内的通道.胚珠发育成种子后,

Aporosa:无莹珊瑚部 银柴属

aporogamy | 非珠孔受精, 无孔生殖 | Aporosa | 无莹珊瑚部 银柴属 | aporrhegma | 裂衍物

aposematic:警戒色的

aporogamy 非珠孔受精 | aposematic 警戒色的 | aposematic coloration 警戒色

aposematic colouration:警戒色

aporogamy 非珠孔受精 | aposematic colouration 警戒色 | apospory 无孢子生殖

chalazogamy:合点受精

或者直接伸向珠孔,进入胚囊(直生胚珠),或者 经过弯曲,折入胚珠的珠孔口(倒生.横生胚珠),再由珠孔进入胚囊,统称为珠孔受精 合点受精(chalazogamy):花粉管经胚珠基部的合点到达胚囊,

pontin protein:桥蛋白(质)[类名,包括骨桥蛋白、尿桥

ponticulin 膜桥蛋白[可促进肌动蛋白丝成束和成核] | pontin protein 桥蛋白(质)[类名,包括骨桥蛋白、尿桥 | porogamy 珠孔受精

porogamy:珠孔受精

花粉管经花柱进入子房后通常沿子房壁或胎座生长,一般从胚珠的珠孔进入胚珠,这种方式称为珠孔受精(porogamy); 少数植物如核桃(Juglans regia)的花粉管是从胚珠的合点部位进入胚囊的, 称合点受精(chalazogamy);

porometer:气孔计

porogamy 珠孔受精 | porometer 气孔计 | porosity 孔隙率,孔隙度